TECHNIQUES FOR COLOR CONTONING IN ADDITIVE FABRICATION AND RELATED SYSTEMS AND METHODS
First Claim
1. A method of producing multicolor objects via additive fabrication by forming a plurality of layers on a substrate from a plurality of materials each having a respective color, the method comprising:
- obtaining image data, the image data indicating a color for each of a plurality of positions;
determining a plurality of color stacks based on the image data, each color stack being determined based on the color associated with one of the plurality of positions of the image data, and each color stack specifying a sequence of materials, where each material in the sequence is selected from amongst the plurality of materials; and
forming, via additive fabrication, a plurality of layers from the plurality of materials according to the specified sequence of materials associated with each color stack.
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Accused Products
Abstract
According to some aspects, a method is provided of producing multicolor objects via additive fabrication by forming a plurality of layers on a substrate from a plurality of materials each having a respective color, the method comprising obtaining image data, the image data indicating a color for each of a plurality of positions, determining a plurality of color stacks based on the image data, each color stack being determined based on the color associated with one of the plurality of positions of the image data, and each color stack specifying a sequence of materials, where each material in the sequence is selected from amongst the plurality of materials, and forming, via additive fabrication, a plurality of layers from the plurality of materials according to the specified sequence of materials associated with each color stack.
45 Citations
32 Claims
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1. A method of producing multicolor objects via additive fabrication by forming a plurality of layers on a substrate from a plurality of materials each having a respective color, the method comprising:
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obtaining image data, the image data indicating a color for each of a plurality of positions; determining a plurality of color stacks based on the image data, each color stack being determined based on the color associated with one of the plurality of positions of the image data, and each color stack specifying a sequence of materials, where each material in the sequence is selected from amongst the plurality of materials; and forming, via additive fabrication, a plurality of layers from the plurality of materials according to the specified sequence of materials associated with each color stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An additive fabrication device configured to produce multicolor objects by forming a plurality of layers on a substrate from a plurality of materials each having a respective color, the additive fabrication device comprising:
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a build platform; one or more printheads configured to deposit liquid droplets of one of the plurality of materials onto the build platform or onto previously formed solid material; a source of actinic radiation configured to cure deposited liquid droplets to produce solid material; at least one processor; and at least one processor-readable medium comprising processor-executable instructions that, when executed, perform a method comprising; obtaining image data, the image data indicating a color for each of a plurality of positions; determining a plurality of color stacks based on the image data, each color stack being determined based on the color associated with one of the plurality of positions of the image data, and each color stack specifying a sequence of materials, where each material in the sequence is selected from amongst the plurality of materials; and operating the one or more printheads to form a plurality of layers from the plurality of materials according to the specified sequence of materials associated with each color stack. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of calibrating an additive fabrication device configured to fabricate multicolor objects by forming a plurality of layers on a substrate from a plurality of materials each having a respective color, the method comprising:
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forming, using the additive fabrication device, a plurality of calibration patches having different colors, wherein each calibration patch is formed from a plurality of layers that are each formed from one of the plurality of materials, each calibration patch being associated with a layer specification; measuring an optical reflectance of each of the plurality of calibration patches at a plurality of different wavelengths of light; and determining a mapping between spectral absorption and the layer specifications of the calibration patches based at least in part on the measured optical reflectance of each of the plurality of calibration patches. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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Specification